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Reciprocal Systems Based on Planar Elements: Morphology and Design Explorations

Baverel, Olivier & Pugnale, Alberto

April 2014 | Article

The concept of transferring forces in a reciprocal way has always been related to the use of timber beams, that is, elongated elements. However, planar components can also be considered; circular tiles, squares, triangles and more articulated or irregular geometrical shapes are all valid alternatives. This report proposes an initial...

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Dante Bini’s air structures (1964-1979): From early Italian prototypes to the Australian experience

Pugnale, Alberto & Bologna, Alberto

April 2014 | Conference Paper

The construction of concrete shells has always been a difficult and expensive procedure. Preparation of complex formworks, as well as placement of curved reinforcing rods require experience and increase the overall cost. Building concrete shells is even more of concern within the Australian context, where the use of simple and...

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Genetic algorithms for structural design

Coelho, Rajan Filomeno, Méndez Echenagucia, Tomás, Pugnale, Alberto & Richardson, James

April 2014 | Chapter

In book: "Shell Structures for Architecture - Form finding and optimization", (pp.290-294). Chapter: Appendix C. Publisher: Routledge. Editors: Sigrid Adriaenssens, Philippe Block, Diederik Veenendaal, Chris Williams. Genetic algorithms are a subclass of evolutionary algorithms. A genetic algorithm (GA) is defined by Goldberg as a “search algorithm based on the mechanics...

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Computational Morphogenesis – Design of a free-form concrete shell

Pugnale, Alberto, Méndez Echenagucia, Tomás & Sassone, Mario

April 2014 | Chapter

In book: "Shell Structures for Architecture - Form finding and optimization", (pp.224-236). Chapter: 18. Publisher: Routledge. Editors: Sigrid Adriaenssens, Philippe Block, Diederik Veenendaal, Chris Williams. Since the introduction of digital technologies, computational design and optimization has been gradually replacing practice based on physical models. Even if born as a set...

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Structural Reciprocity: Critical Overview and Promising Research/Design Issues

Pugnale, Alberto & Sassone, Mario

April 2014 | Article

Reciprocity is a structural principle that has fascinated designers and builders throughout the world since ancient times. Despite the topic's having been studied by various academics, designers and researchers, a critical overview of the references is still missing, as is an outline and discussion of the current and future promising...

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Reciprocal systems based on planar elements: morphology and design explorations

Baverel, Olivier & Pugnale, Alberto

September 2013 | Conference Paper

The concept of transferring forces in a reciprocal way has always been related to the use of elongated timber elements. However, planar components can also be considered - circular tiles, squares, triangles and more articulated or irregular geometries are all valid alternatives. This paper proposes an initial study on reciprocal...

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Multi-Objective Optimization of Concrete Shells

Méndez Echenagucia, Tomas, Pugnale, Alberto & Sassone, Mario

July 2013 | Conference Paper

This paper discusses the application of a Multi-Objective Search method to the design of shell structures. Contrasting objectives of lightweight and high stiffness are considered for two case studies with different geometry and constraints. The Multi-Objective search is performed in the frame of the Pareto theory of non-domination, implemented in...

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Computational Morphogenesis in architecture: structure and light as a multi-objective design/optimization problem

Liuti, Alessandro, Pugnale, Alberto & Erioli, Alessio

July 2013 | Conference Paper

This paper deals with a multi-objective design/optimization grid-shell problem. Structural behavior and light absorption/shading have been selected as fitness functions. Such performance criteria can separately lead to different and divergent optimal solutions but, if they are considered as a whole, they are expected to result in several equivalent or similar...

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Reciprocal systems based on planar elements

Baverel, Olivier & Pugnale, Alberto

July 2013 | Conference Paper

This paper deals with the design of reciprocal spatial configurations, based on the use of planar elements, which are investigated and classified according to their morphological characteristics and design potential. Reciprocal structures were first originated as assemblies of elongated elements. In Europe, the concept of spanning longer distances than the...

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